Mastering Markdown

Markdown is a lightweight and easy-to-use syntax for styling all forms of writing on the GitHub platform.

What you will learn:

How the Markdown format makes styled collaborative editing easy

How Markdown differs from traditional formatting approaches

How to use Markdown to format text

How to leverage GitHub’s automatic Markdown rendering

How to apply GitHub’s unique Markdown extensions

What is Markdown?

Markdown is a way to style text on the web. You control the display of the document; formatting words as bold or italic, adding images, and creating lists are just a few of the things we can do with Markdown. Mostly, Markdown is just regular text with a few non-alphabetic characters thrown in, like # or *.

Examples

It's very easy to make some words **bold** and other words *italic* with Markdown. You can even [link to Google!](http://google.com)

It's very easy to make some words bold and other words italic with Markdown. You can even link to Google!

Sometimes you want numbered lists:
1. One
2. Two
3. Three
Sometimes you want bullet points:
* Start a line with a star
* Profit!
Alternatively,
- Dashes work just as well
- And if you have sub points, put two spaces before the dash or star:
- Like this
- And this

Sometimes you want numbered lists:

One

Two

Three

Sometimes you want bullet points:

Start a line with a star

Profit!

Alternatively,

Dashes work just as well

And if you have sub points, put two spaces before the dash or star:

Like this

And this

If you want to embed images, this is how you do it:
![Image of Yaktocat](https://octodex.github.com/images/yaktocat.png)

If you want to embed images, this is how you do it:

# Structured documents
Sometimes it's useful to have different levels of headings to structure your documents. Start lines with a `#` to create headings. Multiple `##` in a row denote smaller heading sizes.
### This is a third-tier heading
You can use one `#` all the way up to `######` six for different heading sizes.
If you'd like to quote someone, use the > character before the line:
> Coffee. The finest organic suspension ever devised... I beat the Borg with it.
> - Captain Janeway

Structured documents

Sometimes it’s useful to have different levels of headings to structure your documents. Start lines with a # to create headings. Multiple ## in a row denote smaller heading sizes.

This is a third-tier heading

You can use one # all the way up to ###### six for different heading sizes.

There are many different ways to style code with GitHub's markdown. If you have inline code blocks, wrap them in backticks: `var example = true`. If you've got a longer block of code, you can indent with four spaces:
if (isAwesome){
return true
}
GitHub also supports something called code fencing, which allows for multiple lines without indentation:
```
if (isAwesome){
return true
}
```
And if you'd like to use syntax highlighting, include the language:
```javascript
if (isAwesome){
return true
}
```

There are many different ways to style code with GitHub’s markdown. If you have inline code blocks, wrap them in backticks: var example = true. If you’ve got a longer block of code, you can indent with four spaces:

if (isAwesome){
return true
}

GitHub also supports something called code fencing, which allows for multiple lines without indentation:

if (isAwesome){
return true
}

And if you’d like to use syntax highlighting, include the language:

if(isAwesome){returntrue}

GitHub supports many extras in Markdown that help you reference and link to people. If you ever want to direct a comment at someone, you can prefix their name with an @ symbol: Hey @kneath — love your sweater!
But I have to admit, tasks lists are my favorite:
- [x] This is a complete item
- [ ] This is an incomplete item
When you include a task list in the first comment of an Issue, you will see a helpful progress bar in your list of issues. It works in Pull Requests, too!
And, of course emoji!

GitHub supports many extras in Markdown that help you reference and link to people. If you ever want to direct a comment at someone, you can prefix their name with an @ symbol: Hey @kneath — love your sweater!

But I have to admit, tasks lists are my favorite:

This is a complete item

This is an incomplete item

When you include a task list in the first comment of an Issue, you will see a helpful progress bar in your list of issues. It works in Pull Requests, too!

And, of course emoji!

Syntax guide

Here’s an overview of Markdown syntax that you can use anywhere on GitHub.com or in your own text files.

Headers

# This is an <h1> tag## This is an <h2> tag###### This is an <h6> tag

Emphasis

*This text will be italic*_This will also be italic_**This text will be bold**__This will also be bold___You **can** combine them_

Lists

Unordered

* Item 1
* Item 2
* Item 2a
* Item 2b

Ordered

1. Item 1
1. Item 2
1. Item 3
1. Item 3a
1. Item 3b

Images

![GitHub Logo](/images/logo.png)
Format: ![Alt Text](url)

Links

http://github.com - automatic!
[GitHub](http://github.com)

Blockquotes

As Kanye West said:
> We're living the future so> the present is our past.

Inline code

I think you should use an
`<addr>` element here instead.

GitHub Flavored Markdown

GitHub.com uses its own version of the Markdown syntax that provides an additional set of useful features, many of which make it easier to work with content on GitHub.com.

Note that some features of GitHub Flavored Markdown are only available in the descriptions and comments of Issues and Pull Requests. These include @mentions as well as references to SHA-1 hashes, Issues, and Pull Requests. Task Lists are also available in Gist comments and in Gist Markdown files.

Issue references within a repository

Any number that refers to an Issue or Pull Request will be automatically converted into a link.

#1
mojombo#1
mojombo/github-flavored-markdown#1

Username @mentions

Typing an @ symbol, followed by a username, will notify that person to come and view the comment. This is called an “@mention”, because you’re mentioning the individual. You can also @mention teams within an organization.

Automatic linking for URLs

Any URL (like http://www.github.com/) will be automatically converted into a clickable link.

Strikethrough

Any word wrapped with two tildes (like ~~this~~) will appear crossed out.